The collection of Agaricales (mushrooms) section has expanded rapidly in the recent years. The museum also has extensive holdings from the order Tremellales due to Dr. R.J. Bandoni’s interest and research in the group. The collection housed a few of his types in the groups: Fibulobasidium sirobasidioides, Mycogloea amethystina, M. bullatospora, M. nipponica, Sirotrema parvula and S. pusilla.